function changetabbing(caseNO){ 
	document.getElementById("tabbingheader1").className = "TabOFF";
	document.getElementById("tabbingheader2").className = "TabOFF";
	document.getElementById("tabbingheader3").className = "TabOFF";
	document.getElementById("tabbingheader4").className = "TabOFF";
	
	document.getElementById("tabbing1").style.display = "none";
	document.getElementById("tabbing2").style.display = "none";
	document.getElementById("tabbing3").style.display = "none";
	document.getElementById("tabbing4").style.display = "none";
	
	switch (caseNO){
	case 1: 
		document.getElementById("tabbingheader1").className = "TabON"; 
		document.getElementById("tabbing1").style.display = ""; 
		break;
	case 2: 
		document.getElementById("tabbingheader2").className = "TabON"; 
		document.getElementById("tabbing2").style.display = ""; 
		break;
	case 3: 
		document.getElementById("tabbingheader3").className = "TabON"; 
		document.getElementById("tabbing3").style.display = ""; 
		break;
	case 4: 
		document.getElementById("tabbingheader4").className = "TabON"; 
		document.getElementById("tabbing4").style.display = ""; 
		break;
	}
}

function setDisplayStyle(windowname, style){

        var element = document.getElementById(windowname);
	if (element != null)
	{
		element.style.display = style;
	}
}

function opensmallwindow(windowname){

	// These changes are to allow for unlimited popup windows

	var oDiv = document.getElementById("PopUPMain");

	if(oDiv.firstChild) { // check for children
	   var oChild = oDiv.firstChild;
	   while(oChild) { // run over them
	     if(oChild.tagName == "DIV") { // element
		setDisplayStyle(oChild.id, "none");	// Set the displaystyle to none
	     }
	     oChild = oChild.nextSibling;
	   }
	}


	document.getElementById("PopUPMain").style.display = "";

	setDisplayStyle(windowname, "");
}

function closesmallwindow(windowname){
	document.getElementById("PopUPMain").style.display = "none"; 
}